Patents by Inventor Nikolaos Lazaropoulos

Nikolaos Lazaropoulos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11233751
    Abstract: A method for managing transmission resources in a SIP-based communication system by a SIP registrar server can include receiving a first number of register requests from a first client from the number of clients, each register request corresponding to one slot in the predetermined first time period; receiving a second number of register requests from a second client of the number of clients, each register request corresponding to one slot in the predetermined first time period, wherein the second number of register requests exceeds the acceptable predetermined number of register requests for the second client, and assigning a number of slots not used by the first client within the predetermined first time period to the second client for sending the register requests which exceed the acceptable predetermined number of register requests for the second client. A system for implementation of the method and an apparatus can be utilized in embodiments of the method and the system.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 25, 2022
    Assignee: Unify Patente GmbH & Co. KG
    Inventors: Zisis Tsiatsikas, Athanasios Pagonis, Nikolaos Lazaropoulos
  • Publication number: 20210058340
    Abstract: A method for managing transmission resources in a SIP-based communication system by a SIP registrar server can include receiving a first number of register requests from a first client from the number of clients, each register request corresponding to one slot in the predetermined first time period; receiving a second number of register requests from a second client of the number of clients, each register request corresponding to one slot in the predetermined first time period, wherein the second number of register requests exceeds the acceptable predetermined number of register requests for the second client, and assigning a number of slots not used by the first client within the predetermined first time period to the second client for sending the register requests which exceed the acceptable predetermined number of register requests for the second client. A system for implementation of the method and an apparatus can be utilized in embodiments of the method and the system.
    Type: Application
    Filed: October 20, 2020
    Publication date: February 25, 2021
    Inventors: Zisis Tsiatsikas, Athanasios Pagonis, Nikolaos Lazaropoulos
  • Patent number: 10931598
    Abstract: A computer apparatus (e.g. a server) and a method for managing transmission resources in a SIP-based communication system can include use of a SIP registrar server that is adapted to receive register requests from a number of clients connected to the SIP registrar server via a communication network. Each client can be granted a predetermined number of register requests in a predetermined first time period where each register request corresponds to a slot. In the first time period, at least one slot not used by a first client can be lent to a second client. In a second time period, the at least one slot lent to the second client can be reclaimed by the first client or another client. The reclaiming of the lent slot(s) can include making the second client function as a proxy for other clients according to a third party registration process.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: February 23, 2021
    Assignee: Unify Patente GmbH & Co. KG
    Inventors: Zisis Tsiatsikas, Athanasios Pagonis, Nikolaos Lazaropoulos
  • Patent number: 10862824
    Abstract: A method for managing transmission resources in a SIP-based communication system by a SIP registrar server can include receiving a first number of register requests from a first client from the number of clients, each register request corresponding to one slot in the predetermined first time period; receiving a second number of register requests from a second client of the number of clients, each register request corresponding to one slot in the predetermined first time period, wherein the second number of register requests exceeds the acceptable predetermined number of register requests for the second client, and assigning a number of slots not used by the first client within the predetermined first time period to the second client for sending the register requests which exceed the acceptable predetermined number of register requests for the second client. A system for implementation of the method and an apparatus can be utilized in embodiments of the method and the system.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 8, 2020
    Assignee: Unify Patente GmbH & Co. KG
    Inventors: Zisis Tsiatsikas, Athanasios Pagonis, Nikolaos Lazaropoulos
  • Publication number: 20200007466
    Abstract: A method for managing transmission resources in a SIP-based communication system by a SIP registrar server can include receiving a first number of register requests from a first client from the number of clients, each register request corresponding to one slot in the predetermined first time period; receiving a second number of register requests from a second client of the number of clients, each register request corresponding to one slot in the predetermined first time period, wherein the second number of register requests exceeds the acceptable predetermined number of register requests for the second client, and assigning a number of slots not used by the first client within the predetermined first time period to the second client for sending the register requests which exceed the acceptable predetermined number of register requests for the second client. A system for implementation of the method and an apparatus can be utilized in embodiments of the method and the system.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Zisis Tsiatsikas, Athanasios Pagonis, Nikolaos Lazaropoulos
  • Publication number: 20200007596
    Abstract: A computer apparatus (e.g. a server) and a method for managing transmission resources in a SIP-based communication system can include use of a SIP registrar server that is adapted to receive register requests from a number of clients connected to the SIP registrar server via a communication network. Each client can be granted a predetermined number of register requests in a predetermined first time period where each register request corresponds to a slot. In the first time period, at least one slot not used by a first client can be lent to a second client. In a second time period, the at least one slot lent to the second client can be reclaimed by the first client or another client. The reclaiming of the lent slot(s) can include making the second client function as a proxy for other clients according to a third party registration process.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Zisis Tsiatsikas, Athanasios Pagonis, Nikolaos Lazaropoulos